Bumper and brush body



Nov. 18, 1941. w. c.` OTTO BUMPER AND BRUSH BODY 2 Sheets-Sheet l Fi-led OCT.. 24, 1940 c k Il mf m Nmy ///a M 1W H I a/ n, u M ,Afb M Nov. 18, 1941. W C`OTT0 2,262,961

BUMPER AND BRUSH BODY' Filed Oct. 24, 1940 2 Sheets-Sheet 2 'B- Plli. s

INVENTOR. WML/HM C? 07'7'0.'

BY v l Patented Nov. 1K8, 1941 BUMPER AND BRUSH BODY William HC". Otto, Indianapolis, VInd., assigner to J. I. Holcomb' Manufacturing Company, In-

dianapolis, Ind., a corporation' Application October 24, 1940, Serial No. 362,534.

4 Claims.

This invention relates to brushes broadly of the type illustrated in the Otto Patent No. 2,177,- 149 dated October 24, 1939.

This invention is directed to a brush structure and relates more particularly to the provision of a bumper attachment included in and at the ends of an elongated brush of the character before mentioned. y

The chief object of this invention is to provide a bumper construction and mounting arrangement which is peculiarly applicable to any one of the three standard-types of Ibrush structures and which bumper construction when sufficiently worn may be removed and readily replaced with a similar bumper. Y

The chief feature of they invention consists in providing the bumper arrangement as a cap structure which. is peculiarly associated with and mounted upon a brush back as hereinafter pointed out more fully.

Other objects and features vof the invention will be set forth more fully hereinafter.

The full nature of the invention will be understood from the accompanying drawings and the following specifications and claims.

In the drawings,

Fig. 1 is a side elevation vof slightly more than half of a` brush body, a portion of the back structure being broken away to show the same and the bumper in greater detail, the brush body being of the Wire drawn type.

Fig. 2 is a similar View of a brush body of the pitch set type.

Fig. 3 is a top plan View of the end portion of the brush body with bumper cap omitted therefrom, as illustrated in Fig. 1.

Fig. 4 is a similar view of the same with the bumper cap mounted thereon.

Fig. 5 is an inside perspective View o-f the bumper cap.

Fig. 6 is a longitudinal sectional View of a modined form of cap.

Fig. '7 is a top plan view of the same.

Fig. 8 is an end elevation of a modified form of cap looking at the brush receivable end.

Fig. 9 is a bottom plan view thereof.

Fig. 10 is a view similar to Fig. 8 and of a modified form of cap.

Fig. 11 is a bottom plan view thereof.

Fig. 12 is a top plan View of the brush body adapted to receive the cap shown in Figs. 10 and 11.

The brush structure is of the general character illustrated in the before mentioned patentthat is, it includes a group of bristle tufts mounted in and upon an elongated brush back provided with one or-more anchoring portions adapted for handle connection, the latter being clearly described in the 4before mentioned patent and the same forms no part of the present invention. If desired, any other convenient handle arrangement may be provided for associating the handle and brush body together. Y

As set forth in the beforementioned patent, brushes may be of three types insofar as the bristle mountings thereon are concerned. VOne type shown herein in Fig. 2 is of solid back type and briefly includes a holev in which bristles of the length of the tuft are assembled in group forming tufts and are insertedin. said hole and locked therein by means of pitch or other suitable adhesive.

The other broad type is the wire drawn type wherein the brush back is parted and the bristles are arranged in tufts but of a length double that of the tuft length and the bristles are doubled l upon themselves. The wire is associated with the midportion of the bristles at the back seated end of the tuft and the wire is associated with the back, more particularly as shown in Fig. 3 of the before mentioned patent. This requires, as shown in Fig. lI of said patent and as shown in Fig. 1 herein that the brush back be parted.

A third and intermediate type of brush is one wherein the tuft is formed by doubling the bristles `upon themselves and themidportion is associated with a staple which is driven into the brush back and each staple associated end of the tuft is seated in an opening formed in the solid back portion of the brush body. Herein the term brush body is intended to include the entire bristle arrangement together with the back structure. The term brush back is intended to comprehend the bristle supporting portion of the brush body and not the bristle formation.

With this brief explanation of the several types of bristle mountings conventional to the industry, referencefnow will behad to the drawings.

In Fig. 1 of the drawings Illa indicates the upper part of a two-piece back structure, I 0b indicates the lower part thereof, the two being suitably secured together as by the securing means Il, herein shown in the form of screws. They may, however, be bolts and nuts, suchv as illustrated in Fig. 1 of the before mentioned patent, in which event the bolt will extend entirely through the two brush back forming elements and the head will be countersunk and the nut Will be` concealed by the bristle structure l2. The latter, similar to that illustrated in the before mentioned patent, is flared outwardly in all directions, from the body portion.

Herein |2a designates a bristle tuft arrangement and I3 indicates a hole properly positioned with respect to other holes in the portion |b and at the proper angular relation to said back structure to secure suitable bristle distribution and direction. These openings I3 extend entirely through portion |017 and the wire associatedwith the midportion of the bristles and the anchoring end of the tuft is connected thereto in the.

, however, leaves the upper and lower faces, as it conventional manner and to other tufts, all as' shown in Fig. 3 of the before mentionedpatent..

Referring to Figs. 1 and, 3, it will b e noted that there is a parting in thef brush back desig-V nated as llc. There is provided in this brushk back structure at each end a slot |4 which is positioned intermediate thel top and bottomof the brush back as shown in Fig. l. Inasmuch as the end I5 of the brush back is rounded from top to bottom, this slot yformation I4 provides a tongue portion |5a at the end I5 of the brush back and that tongue portion terminates short of the end I5. The slot I4 is directed toward the center of the brush as at |4a along the opposite sides of the brush or the front and back of the brush body portion and said slot extensions terminate as at |412 adjacent the end I5, reference being had to the center of the brush.

The` center of the brush includes suitable apertures I6 which intersect and are threadedV to reversibly receive a handle element This arrangement is more fully illustrated in the before mentioned patent andthe same forms no part of the present invention.

- Herein the slot I4 with its vextensions |4a terminating at |4b is formed by entirely kerflng the end I5, as shown, this resulting in the slot I4 having its ends |4b coincident with the back portion |4c of the slot I4. Preferably this kerng or slotting all is provided in the portion Illa, leaving the portion |0b unmodified and all available for tuft mounting purposes.y

Furthermore, this arrangement permits owners of conventional, elongated wire drawn brushes to purchase the bumper caps, herein to be more fully described, and the major part of the invention, and apply the same to such standard brushes of this character by merely separating the two brush back portions from each other and properly shouldering the lower face of the upper portion to the extent noted. In other'words, the slot formation formed bythis shouldering does not in any way disturb the previous bristle mounting arrangement.

Reference now will be had more fully to Figs. 1, 3, 4 and 5, wherein except for Fig. 3, the bumper cap is illustrated. This bumper cap includes an end wall arrangement 20, and two side portions 2| joined thereto as by merging therewith as at 2'Ia.. The two side portions 2| and the endv wall 2D, as well as merging portions 2|a form a skirt and at their top edges all are connected together by the retaining portion 22, the latter forming a tongue for the purpose hereinafter described. It is to be noted that the portion 20 is considerably thicker as indi` cated at 20a in Fig. 5. The inside face 20, the inside faces of the side walls 2| conform to the side Wall portions at the end I5 and the end wall of the brush body portion |0b.

The cap connecting portion 22 forming the tongue is adapted to be slidably and longitudinally inserted in the slot formation |4-I4a. The edge 22a thereof is adapted to engage the wall were, of the brush back exposed.

By reason of the taper or rounding end |5a of the brush back,.and as shown more clearly in Fig.,4 as well yas Fig; 1, the cap structure protects the end of the brush and thus in its use prevents marring of articles of furniture by Yreason of brush end engagement. This cushionlike cap is also a silencer. In other words,

sweeping can be performed without objection atk such'times and in-su'ch placesl where noise of brush end contact would normally be objection-j able. v

Whenever the,v bumper guard becomes sufficiently worn, it may be readily removed by `merely'severing the side portions'and the end from the top portion and separating the sameA from'the body portion |0b at the end I5 and then the cap portion may be suitably removed by a rekerflng operation if the brush back be of rsolid type 'or may be readily removedY by separating the two` brush back portions and theninserting a sharp bladed instrument between the portion 22 and the upper back portion 22 adheres tothe back portion |012, it may be readily peeled therefrom, all without disturbing the Wire anchorage arrangement which then is exposed `following the peeling operation. The brushf-parts then are reassembled and replacement capsy provided.

If desired and the same is contemplated within the scope of this inventionthe thickness of the portion 22 may beslightly greater than the thickness of the slot I4 and the distance between the side wall portions maybe slightly less than the width of the brush body portion |01) at the end.

Since the bumper cap structure'is of'resilient material, such as rubber, it will be quite apparent that 'in this arrangement the bumper capmay be slipped into the slot land thus mounted.

and the same will be frictionally retained `on the back With sufcient force to prevent casual disconnection.

Reference now will be had to Fig. 2.' In Fig.

2 numerals of the 100 series indicate like orl Herein it will be observed thatv similar parts. the brush back III)r is of. solid type and it is `to be understood that there is provided inthe brush,`

back recesses ||3 whichY receive the bristles or tufts ||2a and the same are secured insaid recesses by pitch for a pitch set brush. or staples by a staple set brush. It is to be observed, how-f between. Likewise, the distance between the sidek walls I2| may be such as to be but slightly less than the width of the end ||5 ofthe elongated brush back so that said side walls |2|'wil1 vfric--L tionally engage the same. If desired, suitable adhesive such a's rubber cement or the like, may be provided to permanently, relatively speaking, secure the cap to the brusnvend.

By means of this cap structure, as previously set forth, the end of the brush and more particularly that portion adjacent the bristle mounting portion, is protected against damage and thus the end bristles or body of the brush will not become loosened, and the like, resulting in brush damage. Furthermore, this particular type of cap structure has the additional desirable advantage that it protects furniture legs and the like, mop boards, door casings', and the like, from being marred by reason of contact with the brush end.

As previously pointed out, with both types of brush structures, the same being dissimilar only in the respects noted, the mergence of the side Walls ofthe cap as at 2|a and the body portion 22 as well as the end wall portion 20 is such that the immediate end of the brush is protected even though a part of the brush at the end is relieved. Thus, the top of the brush at the irnmediate end is protected and yet the immediate top of the brush is fully exposed for advertising and other matter, if desired.

In Figs. 6 and 7 there is illustrated a modified form of cap structure and numerals of the 200 series indicate like or similar parts herein, which are similarly indicated by the primary and 100 series in the other figures.

The chief distinction herein is the provision of a serrated portion on either or both faces of portion 222. Herein same is shown at 222a and 222D on both faces and the teeth are staggered so that when forcibly inserted in a slot I4 or ||4, the ratchet type teeth readily deform or yield to facilitate as well as permit such entrance but when an attempt is made to withdraw the tongue portion 222 from the slot I4 or |I4, said teeth friction grip and resist such attempt.

Note that by offsetting or alternating the teeth on opposite faces of portion 222, the tooth formation is such that the depth of one tooth is the readily compressible portion and the thickness of the portion |22 between the root of one tooth and the opposite face is the more resistant portion, although even that, when of rubberlike material has some resiliency.

'I'he resulting cap, therefore, is of friction retainable character, and readily mountable but difculty demountable as well, thereby preventing casual or accidental separation incident to normal brush use.

Figs. 8 and 9 illustrate a modified form of the invention similar to those previously illustrated. Herein, numerals of the three hundred series indicate like or similar parts,

This form of the invention is characterized by the addition of an underlip 3D0 coextensive with the side and end walls of the cap. Herein, also, the side walls 32| instead of being substantially equidistant from front to rear, are arranged in converging relation as indicated at 30| partially at the free, hipped or rimmed portions so that when applied to the brush body these portions yield outwardly but in so doing, exert a clamp-ing force upon the opposite sides of the brush.

As shown in Figs. 4 and 7, the free outer edge portion may be beveled or tapered. Herein the same is indicated at 302 and the lip or rim, 300 adjacent bevel 302 may be tapered or beveled as at 302a.

In Figs. 10 and 11, there is illustrated a modilied form of cap. In Fig, 1'2,there 'is illustrated a brush bodyv endmodified for cap mounting. The brush body A of any one of the three brush types is reduced as at B on its upper and merging side faces, said reduction extending to. the end. Sockets can be drilled yradially therein.

The cap shown in Figs. 10 and 11 is designated by numerals of the four hundred series. It is similar to that shown in Figs. 3, 4 and 5 except it has the curved formation D including surfaces D and D2 to correspond With the top curvature original shape and modified shape of the brush body end respectively. Bosses 406 apertured at 401 may receive screws. The outer free ends of the side walls 42|, as well as free ends of lip 400 at 4020., may be tapered if desired.

When this cap is mounted, lips 400 underlie the brush face from which project the bristles.

The remainder of the cap covers the end, sides and top of the brush and. bosses 406 seat in sockets C. Screws, not shown, then detachably secure this cap to the brush, although it is observed that screws are not absolutely essential for anchorage, since the bosses prevent rotation and longitudinal separation between cap and brush body while therim prevents rotation.

If Fig. 9 be compared with Fig. '7, the side wall taper is apparent. Accordingly, side Walls 42| in Fig, 11 may be similarly drawn inwardly Whenever desired.

While the invention has been illustrated and described in great detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modifications described herein as well as others which will readily suggest themselves to persons skilled in this art, al1 are considered to be within the broad scope of the invention, reference being had to the appended claims.

The invention claimed is:

1. A brush and bumper structure including a considerably elongated brush body having a back provided with a slot at each end only and between the top and bottom thereof, each slot eX- tending along each side toward the midportionl of the back but terminating immediately adjacent the end, and a cap at each end and of resilient material and having a body portion seated in the slot and a depending skirt covering the exposed end of the back as well as the sides thereof immediately adjacent the end.

2. A brush and bumper structure including a considerably velongated brush body having a, back provided with a slot at each end only and between the top and bottom thereof, each slot extending along each side toward the midportion of the back but terminating immediately adjacent the end, and a cap at each end and of resilient material and having a body portion seated' in the slot and a depending skirt covering the exposed end of the back as well as the sides thereof immediately adjacent the end, said cap body portion and depending skirt forming a chamber having two transverse adjacent and communicating openings, one for brush back portion reception and the other for bristle projection, said cap being slidably mounted upon the back portion at the end, the skirt protecting the opposite sides of the brush back at that end, as well as the immediate end of the brush, the brush back end being rounded, said connecting cap body portion protecting the top of the brush back immediately below the slot therein.

3. A brush structure as dened by claim 1,

characterized by the slot extending completely across the endV of the brush back and from side to side thereof providing a flat facev at the nterior end of said slot, the body. portion of the characterized byopposte faces of the body portion having roughened surfaces for friction retention of the cap in the slot, the roughening comprising regularly arranged teeth, the teeth cap completely filling said slot when secured to 5 on opposite surfaces being offset.

the back.. v Y

4. A brush'structureas defined by claim 1,

WILLIAM c. OTTO. 

